沥青砂浆的配合比(重量比)为:60号石油沥青:砂:水泥=()。
A、1:2:1.13
B、1:3:1.13
C、1:4:1.13
D、1:1:2
参考答案:C
They_________ our luggage at the customs and made a mess of it. [ ]
A. turned out
B. went through
C. looked into
D. took away
某低压供电的工业用户,绕越电能表用电,属于窃电,现场调查窃电设备为5kW电动机两台,窃电时间查不清,该户应最少追补电量为()kWh。
A.21600
B.10800
C.5400
D.2700